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  英汉翻译教程（修订本）
  ￥5.80

本教材的内容覆盖了机械设计制造及其自动化专业的基本内容。各单元之间,既有一定的内在联系又独立成章,可根据不同学时数灵活选用。第二版保留了**版的风格,对部分内容作了更换与调整,增加了如模具设计与制造、过程控制系统状态监测、精益制造等内容,使教材适应性更广,也更加通俗易懂。
本教材共分为三部分(Part),30个单元(Unit)。**部分为机械设计与制造的基本知识,包括金属材料、非金属材料、材料的机械性能、选材、制造工艺、加工设备、数控机床、化工机器、热力学、流体力学、机械及机械零件设计等。第二部分为自动控制的基本知识,其中包括控制原理、控制系统类型、反馈控制原理、信号转换、测量系统等。第三部分为现代先进制造技术,主要介绍计算机技术、机电一体化、计算机数控、机器人、计算机辅助制造、柔性制造系统、计算机集成制造、自动组装、质量保证与控制、虚拟制造、敏捷制造、绿色产品制造等。
本教材可供机械工程及相关专业本科生使用,也可作为同等程度的专业技术人员的自学教材。

PART IFUNDAMENTALS OF MACHINE DESIGN & MANUFACTURING1
Unit 1 Metals
Reading Material 1 Stainless Steels
Unit 2 Selection of Constuction materials
Reading Material 2 Polymer and Composites
Unit 3 Mechanical Properties of Materials
Reading Material 3 Tests of Mechanical Properties
Unit 4 Application of Intensive Quenching Technology for Steel Parts
Reading Material 4 An Overview of Advances in Vacuum Heat Treatment
Unit 5 Design of Machine and Machine Elements
Reading Material 5 Design and Implementation of a Novel Dexterous Robotic
Unit 6 Manufacturing Process (1)
Reading Material 6 Manufacturing Process (2)
Unit 7 Shaper, Planer, Milling and Grinding Machines
Reading Material 7 The Lathe
Unit 8 Die Machines
Reading Material 8 Injection molds
Unit 9 NC Manufacture
Reading Material 9 Numerical Control
Unit 10 Hydraulic System
Reading Material 10 Pump Controls and Systems
Unit 11 Thermodynamics
Reading Material 11 Energy of a System
Unit 12 Fluid Mechanics in Engineering
Reading Material 12 Regimes of Flow in a Straight Pipe or Duct
Unit 13 Compressors——General Type Selection Factors
Reading Material 13 Pumps
Unit 14 Quality Assurance and Control (1)
Reading Material 14 Quality Assurance and Control(2)
PART IIFUNDAMENTALS OF AUTOMATION
Unit 15 Control System Fundamentals
Reading Material 15 Applications of Automatic Control
Unit 16 Open-loop and Closed-loop Control
Reading Material 16 PID controller
Unit 17 Feedback and Its Effects
Reading Material 17 Types of Feedback Control Systems
Unit 18 Adaptive Control
Reading Material 18 Digital Control Development
Unit 19 Process Control(1)
Reading Material 19 Process Control(2)
Unit 20 Measurement Systems
Reading Material 20 Measurement
Unit 21 The World of Sensors
Reading Material 21 Signal Conversion
Unit 22 Introduction to Vibration
Reading Material 22 Vibration Aunalysis and Fault Diagnosis
PART IIICOMPUTERIZED MANUFACTURING TECHNOLOGIES
Unit 23 What is “Mechatronics”?
Reading Material 23 Benefits of mechatronics
Unit 24 Computerized Numerical Control(1)
Reading Material Computerized Numerical Control(2)
Unit 25 Robots(1)
Reading Material 25 Robots(2)
Unit 26 Computer-Aided Manufacturing(1)
Reading Material 26 Computer-Aided Manufacturing(2)
Unit 27 Flexible Manufacturing Systems(1)
Reading Material 27 Flexible Manufacturing Systems(2)
Unit 28 Comtuter-Integrated manufacturing(1)
Reading Material 28 Comtuter-Integrated manufacturing(2)
Unit 29 Automatic Assembly(1)
Reading Material 29 Automatic Assembly(2)
Unit 30 Lean Production,Agile Manufacturing and Mass Customization Production
Reading Material 30 Agile Manufacturing and Green Product Manufacturing
Appendix 1 Vocabulary
Appendix 2 A List of Common Prefixes and Suffixes

PART IFUNDAMENTALS OF MACHINE DESIGN & MANUFACTURING1
Unit 1 Metals
The use of metals has always been a key factor in the development of the social systems of man. Of the roughly 100 basic elements of which all matter is composed, about half are classified as metals. The distinction between a metal and a nonmetal is not always clear cut. The most basic definition centers around the type of bonding existing between the atoms of the element, and around the characteristics of the electrons associated with these atoms. In a more practical way, however, a cmetal can be defined as an element which has a particular package of properties.
Metals are crystalline when in the solid state and, with few exceptions are solid at ambient temperatures. They are good conductors of heat and electricity and are opaque to light. They usually have a comparatively high density. Many metals are ductile——that is, their shape can be changed permanently by the application of a force without breaking. The forces required to cause this deformation and those required finally to break or fracture a metal are comparatively high, although, the fracture forces is not nearly as high as would be expected from simple considerations of the forces required to tear apart the atoms of the metal.
One of the more significant of these characteristics from our point of view is that of crystallinity. A crystalline solid is one in which the constituent atoms are located in a regular three-dimensional array as if they were located at the corners of the squares of a three-dimen-sional chessboard, The spacing of the atoms in the array is of the same order as the size of the atoms, the actual spacing being a characteristic of the particular metal. The directions of the axes of the array define the orientation of the crystal in space. The metals commonly used in engineering practice are composed of a large number of such crystals, called grains. In the most general case, the crystals of the various grains are randomly oriented in space. The grains are everywhere in intimate contact with one another and joined together on an atomic scale. The region at which they join is known as a grain boundary.
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